A particle is projected vertically upward from the ground with speed 30m/s. calculate the a) maximum height reached by the particle
b) time taken by the particle to return to the ground
c)time(s) taken for the particle to attain a height of 40m above the ground.

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these